The Boston Gazette and Country Journal published a proclamation
for a public thanksgiving from the Massachusetts Council-Chamber
in Watertown:

Altho' in Consequence of the unnatural, cruel and
barbarous Measures, adopted and pursued by the British Administration
. . . . We have thought fit . . . to appoint THURSDAY the Twenty-third
Day of November . . . to be observed as a Day of public THANKSGIVING,
throughout the Colony; . . . .

That such a Band of Union, founded upon the best Principles,
unites the American Colonies; That our Rights and Priviledges
. . . are so far preserved to us, notwithstanding all the Attempts
of our barbarous Enemies to deprive us of them. And to offer
up humble and fervent Prayers to Almighty GOD, for the whole
British Empire; especially for the UNITED AMERICAN COLONIES
. . . .

The American colonies ultimately severed all ties with the British
Administration with the 1776 Declaration of Independence.